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Dissolves look bad after going to MPEG2 through Compressor
I’m having a real hard time with this problem. Originally I thought the problem might be because I’m edit in an HDV timeline (upper field dominant) and then rendering it down to an NTSC 8-bit Uncompressed timeline (lower field dominant), but then I have spent all day today running different tests and nothing seems to work. The dissolves, especially slower dissolves and especially between 2 shots with different brightness levels, look like they are stepping through or jittering or something. The video breaks down very bad, especially on a shot where I am dissolving from a shot with a bright sky to the next shot with dark green trees at the top of the frame where the sky was. The sky just seems to decay through the dissolves and gets pixelated and jittery.
Any help would be greatly appreciated.
Thanks
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4 Replies
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Yep I have been fighting this myself however the problem isn’t there is If work from the old QT pro 6.5.2 exporter. Also I noticed that draging and droping an AIC HDV movie into DVD SP 4, the background encoding works decent enough and faster at compressing SD 16/9 finals. However that project did have a lot of dissolves. However I have tried fooling with settings in compresor setting everything to best and even placing compression marker by hand around transitions to force I frames. Nothing I did in Compressor 2 worked as clean as QT pro 6.5.2 exporter. Bitvice software encoder demo will take the same file that had noisy disolves from compressor 2 and create a prefectly clean file. In my responce I hope you can see some things to help you out, but mostly I just wanted to amen your post with my own experiences.
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A lot of folks, including myself are having these problems with Compressor 2’s 2-pass VBR, including myself. Try single-pass VBR, and see if that solves your problem.
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Single pass you say. HMMMMM I’ll try it.
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also try changing your gop setting. I believe if it’s set open it creates the blocky artifacts.
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